Gamma Cygni Nebula Mosaic

This is just a portion of a huge nebulous region near the bright star
Sadr in the constellation of Cygnus. Sadr is the bright star near the center
of this image. This image contains many objects, each with their own
designation. Among the brightest are IC 1318 (The Butterfly Nebula), IC
1311, and NGC 6888 (The Crescent Nebula). This image is a mosaic of 12
frames, covering approximately 6.2° x 5.5° of sky.